CN1250928C - Food chilling method and apparatus - Google Patents
Food chilling method and apparatus Download PDFInfo
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- CN1250928C CN1250928C CNB028067401A CN02806740A CN1250928C CN 1250928 C CN1250928 C CN 1250928C CN B028067401 A CNB028067401 A CN B028067401A CN 02806740 A CN02806740 A CN 02806740A CN 1250928 C CN1250928 C CN 1250928C
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- rotating cylinder
- refrigerant
- temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/363—Freezing; Subsequent thawing; Cooling the materials not being transported through or in the apparatus with or without shaping, e.g. in form of powder, granules, or flakes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/06—Freezing; Subsequent thawing; Cooling
- A23B4/062—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus with or without shaping, e.g. in the form of powder, granules or flakes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/06—Freezing; Subsequent thawing; Cooling
- A23B4/062—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus with or without shaping, e.g. in the form of powder, granules or flakes
- A23B4/064—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus with or without shaping, e.g. in the form of powder, granules or flakes with packages or with shaping in the form of blocks or portions
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/361—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus, with or without shaping, e.g. in form of powder, granules, or flakes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/361—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus, with or without shaping, e.g. in form of powder, granules, or flakes
- A23L3/362—Freezing; Subsequent thawing; Cooling the materials being transported through or in the apparatus, with or without shaping, e.g. in form of powder, granules, or flakes with packages or with shaping in form of blocks or portions
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/37—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals
- A23L3/375—Freezing; Subsequent thawing; Cooling with addition of or treatment with chemicals with direct contact between the food and the chemical, e.g. liquid nitrogen, at cryogenic temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/16—Sensors measuring the temperature of products
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/001—Arrangement or mounting of control or safety devices for cryogenic fluid systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
- F25D3/11—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air with conveyors carrying articles to be cooled through the cooling space
Abstract
Disclosed are a method and apparatus for chilling food product, employing (A) cooling means comprising (1) a rotatable drum (1), (2) means in said drum for urging pieces through said drum, (3) cryogen dispensing means (6), and (4) means for rotating said drum (1); (B) feeding means (11) which includes means for automatically sensing the mass flow rate at which said pieces are being fed into said inlet and for generating electrical signals corresponding to said rate; (C) electronic control means (14) responsive to said signals and temperature inputs for preventing premature flow of cryogen and for automatically controlling the rate at which cryogen is fed so as to lower the temperature of said pieces to the desired exit temperature.
Description
Technical field
The present invention relates to a kind of method and apparatus that reduces food temperature, relate more specifically to reduce when being a large amount of food block form the method and apparatus of food temperature when food.
Background technology
In food-processing industry, often wish that processed food block remains under the cryogenic temperature in several years.Do like this and reduce microorganism and other harmful reagent (agent) on food or the ability of growing in the food.For the food that does not also pass through any procedure of processing, especially true, for example various piece of meat (being beefsteak, poultry and fish) and whole meat, and also unprocessed fruits and vegetables.The also unprocessed fact of food means the intermediate steps that does not also have to make microorganism or other harmful substance inactivation on food or in the food, as the cooking.Therefore, more can influence food unfriendly by cooling food in case therefore the reagent that may exist propagation also become, it is more favourable handling raw material food.
In the certain methods of processed food, particularly in the certain methods of manufactured meat, goods may be in the temperature of normal temperature or higher (as under the situation of the meat of newly butchering, perhaps passing through under the situation of the procedure of processing that relates to heating at meat).In these cases, hope be that meat products is cooled in the cryogenic temperature in several years, in order to accomplish this point rapidly, to realize stoping or making the above-mentioned purpose of harmful substance inactivation.
For the goods that they must obtain, the meat processor has some target temperatures, to satisfy the HACCP requirement.These requirements typically refer to meat need be cooled to 32-36 final goal temperature being used to store or load and transport from 40 °F-50 °F.The factory of worker again that accepts the raw meat goods may require even stricter temperature control than HACCP.
Present cooling means makes by hand or semi-automatic distribution CO
2Dry ice lumps, wet ice or CO
2Avenge in the box or trailer (being called " loading ") that once loads 2000 pounds of meat.The free cooling of the food that carries out may cause the products temperature that changes in wide region in this way, has focus and/or cold point, finally produces underproof goods or too high refrigeration costs.In addition, determining of end article quality may be difficult, because have wet ice or dry ice.
Except obtaining above-mentioned even products temperature, processing factory also needs to consider work that the material processed aspect of present batch process relates to and the CO that distils in adding break and stored frozen district
2Suitable consumption.
The method that provides efficient cooling food fast such as meat of therefore, in this industry, wishing.Though disclose some technology in the prior art, they also do not obtain cooling rate rapidly in the production of cooling food, be used for realizing the greater efficiency consumption of the refrigerant of lowering the temperature and the best combination of speed of production fast.Invention as herein described has realized these purposes and will disclosed other purpose in specification.
Summary of the invention
One aspect of the present invention is a kind of equipment that cools off big gauge block food, and it comprises:
(A) cooling device, comprise (1) rotating cylinder, it defines a space and has the outlet that is used for described import and is used for described, (2) when described rotating cylinder rotates, the device of outlet is moved and discharges in described cooling zone of passing through the described space from described import of Continuous Drive to outlet in described rotating cylinder, (3) be used for from the source of described rotating cylinder outside sending into refrigerant and described refrigerant being assigned to the device that refrigerant distributor on the described cooling zone and (4) rotate described rotating cylinder to described rotating cylinder;
(B) be used for accepting described big gauge block and they are sent into the drawing-in device of rotating cylinder continuously, this drawing-in device comprises that described of automatic detection sends into the mass flow of described import and produce and the corresponding signal of telecommunication of described automatic detection mass flow;
(C) electronic-controlled installation, be used for receiving and the corresponding described signal of described mass flow from described drawing-in device, and be used to receive corresponding with the temperature of the piece of sending into described import and with the described corresponding electronics input of desired temperature of discharging described rotating cylinder outlet, be used to prevent that refrigerant from flowing to described cooling zone before the described goods of scheduled volume are delivered to described cooling zone, and be used for automatically control and refrigerant delivered to speed on the described cooling zone by described refrigerant distributor, this speed is the function of described signal and described input, so that the speed of the hope outlet temperature when discharging rotating cylinder with the temperature that is enough to reduce described to their is distributed refrigerant;
Wherein, when being sent in the described drawing-in device for described, described drawing-in device detects described mass flow, and generation and transmission and the corresponding signal of telecommunication of described mass flow are to described electronic-controlled installation, and wherein when the outlet temperature of described mean temperature and hope is input in the described electronic-controlled installation, only after a large amount of described occupies described cooling zone, refrigerant is assigned on the described cooling zone with the enough speed of hope outlet temperature of temperature when their discharge rotating cylinder that reduces described.
Another aspect of the present invention is a kind of method of cooling off a large amount of solid food pieces, comprising:
(A) provide a cooling device, it comprises (1) rotating cylinder, define a space and have the outlet that is used for described import and is used for described, (2) when described rotating cylinder rotates, the device of outlet is moved and discharges in described cooling zone of passing through the described space from described import of Continuous Drive to outlet in described rotating cylinder, (3) refrigerant distributor, be used for sending into the device that refrigerant also is assigned to described refrigerant described cooling zone and the described rotating cylinder of (4) rotation to described rotating cylinder from the source of described rotating cylinder outside;
(B) provide a kind of drawing-in device, be used for receiving described big gauge block and they are sent into rotating cylinder continuously, this drawing-in device comprises that described of automatic detection sends into the mass flow of described import and produce and the corresponding signal of telecommunication of described automatic detection mass flow;
(C) provide electronic-controlled installation, be used for receiving and the corresponding described signal of described mass flow from described drawing-in device, and be used to receive corresponding with the temperature of the piece of sending into described import and with the described corresponding electronics input of desired temperature of discharging described rotating cylinder outlet, be used to prevent from before the described goods of scheduled volume are delivered to described cooling zone, to make flowable flow to described cooling zone, and be used for automatically control and refrigerant delivered to speed on the described cooling zone by described refrigerant distributor, this speed is the function of described signal and described input, so that to be enough to described temperature is reduced to the speed distribution refrigerant of the outlet temperature of wishing when they discharge rotating cylinder;
(D) described is sent in the described drawing-in device, at this moment, described drawing-in device detects described mass flow, and generation and transmission and the corresponding signal of telecommunication of described mass flow are to described electronic-controlled installation, in described electronic-controlled installation, import the described mean temperature and the outlet temperature of hope, and rotate described rotating cylinder, wherein, only after a large amount of described occupies described cooling zone, refrigerant is assigned on the described cooling zone.
Another aspect of the present invention is a kind of equipment of freezing a large amount of food blocks, and it comprises:
(A) refrigerating plant, comprise a shell, have import that is used for described food and the outlet that is used for described food, Continuous Drive piece wherein moves and discharges the device of outlet to outlet from described import in described shell, be used for providing refrigerant, by direct or indirect and described refrigerant contact refrigeration food wherein to described shell;
(B) be used to accept described big gauge block and they are sent into the drawing-in device of the import of described shell continuously, this drawing-in device comprises that described of automatic detection sends into the mass flow of described import and produce the corresponding signal of telecommunication of mass flow with described automatic detection;
(C) electronic-controlled installation, be used for receiving and the corresponding described signal of described mass flow from described drawing-in device, and be used to receive corresponding with the temperature of the piece of sending into described import and with the described corresponding electronics input of desired temperature of discharging described housing outlet, be used for control automatically and refrigerant delivered to the speed of described shell by described refrigerant distributor, this speed is the function of described signal and described input, so that freezing described speed is distributed refrigerant in described shell;
Another aspect of the present invention is a kind of continuation method of freezing a large amount of foods solid pieces, comprising:
(A) provide refrigerating plant, comprise a shell that has the import that is used for described food and be used for the outlet of described food, Continuous Drive piece wherein moves and discharges the device of outlet to outlet from described import in described shell, with the device that is used for providing refrigerant, by direct or indirect and described refrigerant contact refrigeration food wherein to described shell;
(B) provide drawing-in device, be used to receive described big gauge block and they are sent into the import of described shell continuously, this drawing-in device comprises that described of automatic detection sends into the mass flow of described import and produce the corresponding signal of telecommunication of mass flow with described automatic detection;
(C) provide electronic-controlled installation, be used for receiving and the corresponding described signal of described mass flow from described drawing-in device, and be used to receive corresponding with the temperature of the piece of sending into described import and with the described corresponding electronics input of desired temperature of discharging described housing outlet, be used for control automatically and refrigerant delivered to the speed of described shell by described refrigerant distributor, this speed is the function of described signal and described input, so that distribute refrigerant with speed freezing described in described shell;
(D) send into described drawing-in device to described, mass flow that described drawing-in device monitoring this moment is described and generation and transmission and the corresponding signal of telecommunication of described mass flow are to described electronic-controlled installation, in described electronic-controlled installation, import the described temperature and the outlet temperature of hope, wherein provide refrigerant with the speed that is enough to freezing described goods wherein.
The accompanying drawing summary
Accompanying drawing is the schematic diagram that is used to implement equipment of the present invention.
Detailed Description Of The Invention
The goods that can handle according to the present invention comprise meat living or pre-heated, whole and part, and this is preferred, comprises beef, chicken, turkey and other poultry and fish and vegetables, fruit and snack food product.The temperature of the food that preferably, enters is 40 °F-50 °F.
With reference to the accompanying drawings, be used to implement cooling device of the present invention and comprise rotating cylinder 1, it is drum forms preferably, its rotating shaft be level or near level.This rotating cylinder is supported in bracing or strutting arrangement 2, and on 2 ', bracing or strutting arrangement also comprises a motor and is applicable to the driving mechanism of control rotating cylinder around its rotation.
Rotating cylinder 1 comprises import 3, and it can be seen in the phantom in the accompanying drawings, and comprise outlet 4.Opening 3 and 4 is formed on the opposite end of rotating cylinder.The size of determining import 3 and outlet 4 makes the food block of sending into rotating cylinder easily pass through these two openings, and the overall diameter of rotating cylinder 1 is enough big, and the feasible a certain amount of food that is cooled can remain on and be cooled in the rotating cylinder and can not overflow any opening immediately.According to user's hope, goods can store, load and transport or processing or processing in addition after the cooling of discharge outlet 4.
Can see from analysing and observe partly of rotating cylinder 1, rotating cylinder inside provides some baffle plates 5, baffle plate 5 is inwardly outstanding flat type, and each has certain angle with respect to rotating shaft, and the goods piece that makes the rotation of rotating cylinder will drive continuously in the rotating cylinder moves and discharge outlet 4 from import 3 to outlet 4.Baffle plate should be enough to scoop up food block in length radially when rotating cylinder rotates, and carries them and be no more than 2/3rds of distance from the rotating cylinder lowermost portion to the rotating cylinder upside, described then from the baffle plate towards the lowermost portion landing of rotating cylinder.
Refrigerant controllably (for example by closing or be opened to the valve or the equivalent arrangements of any extend of hope) send into rotating cylinder inside from refrigerant source 6, refrigerant source is the refrigerant source of cylinder or other pressurization normally.Preferred refrigerant is carbon dioxide or liquid nitrogen.When carbon dioxide was refrigerant, the form of its mixture with solid and cold gaseous carbon dioxide (being called " snow ") was distributed in rotating cylinder inside.Refrigerant 6 is sent into rotating cylinder inside by pipeline 7 from the source, and distributes from the nozzle 8 of pipeline 7 ends and to enter rotating cylinder inside.
Should arrange nozzle 8, make refrigerant only be assigned on the zone specific in the rotating cylinder, this zone preferably extends to 1/4th positions to half of rotating cylinder top distance at most (if promptly observe from the end from lowermost portion, when rotating cylinder is rotated counterclockwise, from about 6 position to being no more than about position at 3).
For this purpose, be used for effectively distributing the preferred nozzle of carbon dioxide to be included in United States Patent (USP) 5,868,003 and United States Patent (USP) 5,765,394 in those disclosed.The disclosure of these patents is incorporated this paper into as a reference.Such spray nozzle device comprises expansion (expanded) parts or other parts, many thin channel by these parts are wherein arranged, these parts pass completely through and valve nozzles in the refrigerant fluid passage and many many extended channels by these parts are provided.The preferred material that is used for widening parts is the stainless steel of sintering or micro-drilling; But being provided for refrigerant fluid is acceptable by many porous channels in lower pressure district or any material of microchannel.Widening parts must have many many passages that refrigerant fluid expands that are used for, therefore combine with barometric gradient on it, refrigerant fluid (if carbon dioxide) is transformed into steam and tiny snow particulate, to discharge than low velocity, this speed is lower than identical mobile pressure and falls the speed that is occurred by the single-hole nozzle generation from expansion material for they.Term " expansion material " comprises metal as base material, pottery, glass, plastics, composite, screen cloth, steel wool etc.
The sintered porous goods of stainless steel as widening parts can be from Mott MetallurgicalCorporation, Farmington Industrial Park, and 84 Spring Lane, Farmington, Connecticut obtains.Multi-hole plugin can be made all thickness and diameter, and about pore, can be defined as the 0.2-100 micron by various ranks, about 20 microns of preferably about 5-.The shape of multi-hole plugin and pore size can change according to purposes and nozzle arrangements.For example, compare with the plug-in unit of 10 microns pores with identical table area, the plug-in unit of 5 microns pores will produce per unit area snow still less.For the form of the more approaching circle of refrigerant, can use disk.For more approaching fan-shaped form, then have the disk in fan-shaped porous zone or the exit that cap can be provided in nozzle.
The widening parts of micro-drilling (plug-in unit) also is available." micro-drilling " used herein is meant to have many widening parts that pass through boring, perforation etc. with the thin channel of mechanical means formation.Expect that such micro-drilling widening parts can have the hole of the highest about 300 micron diameters, preferred bore dia scope is about 200 microns of about 10-.
Be used for this equipment on the one hand of the present invention and comprise the device 11 of goods being sent into rotating cylinder.Drawing-in device 11 is preferably included in the conveyer belt 12 on its upper surface, and it carries out the function that goods piece down fold 13 is carried, and skewed slot 13 is sent into import 3 to goods.Simultaneously, drawing-in device 11 is determined the weight of material of conveying on conveyer belt 12, so that can combine with line speed (generally being constant), determines that the mass flow of materials on the conveyer belt 12 (promptly is expressed as the Flow of Goods and Materials speed of quality/unit interval.This drawing-in device produce with by the definite relevant signal of telecommunication of extra fine quality flow of drawing-in device, perhaps respectively with the weight of material and the corresponding two kinds of signals of telecommunication of line speed.At continuously measuring flow and when being accumulated to it in register, mass flow or signal of telecommunication continuous effective corresponding with it ground produce.
The device that is suitable for carrying out these functions can be buied.Example comprises the Company available from Milltronics, the device of Mass Dynamics Division, comprise be called " Auto Weigh Feeder Series 600 " those and available from Scanzaegt, Aarhus, which of being called of Norway " ScanFlow 4674 ".
The signal of telecommunication that is produced by drawing-in device 11 is sent in the electronic controller 14, and electronic controller can be the special element in the accompanying drawing, perhaps can incorporate in other equipment described herein.Controller 14 is minicom or other equivalent apparatus preferably.It must accept the signal by drawing-in device 11 generations, and can receive with the mean temperature of sending into the food block of rotating cylinder 1 and (import by hand by using keyboard, perhaps by the signal of telecommunication by the temperature sensing device generation, be preferably infra-red heat and survey eye, be used to detect the temperature of the food that enters on the conveyer 12) and food discharge the corresponding signal of telecommunication input of desired temperature of outlet 4.The infrared sensor that is used for this purpose can be buied, and it detects heat and its quantitative signal of telecommunication for being directly proportional with the temperature that is detected.
With any conventionally known method controller 14 is programmed, so that produce and the corresponding output signal of refrigerant flow that is fed to pipeline 7 and rotating cylinder 1 inside, thereby produce hope cooling degree by the food of rotating cylinder 1 from these inputs with from the signal of drawing-in device.The control that refrigerant flows is undertaken by the electric control of the valve (not shown) in the pipeline 7, and ducted pressure is adjusted to the hope flow velocity of refrigerant by pipeline 7.Output signal also be certainly the temperature of articles that enters and discharge poor, enter and pass through the function of the mass flow of rotating cylinder, and be the function of the concrete heat of evaporation of temperature and the refrigerant that applies by nozzle 8.These relations are weaved into 14 the program of entering.
In general, the hope outlet temperature of food discharge outlet 4 is preferably about 32 °F-Yue 36 °F.The mean temperature of the food that enters can change on a large scale.It can hand dipping and manual being input in the controller 14, perhaps can measure (for example by above-mentioned infrared acquisition eye) automatically, and its corresponding signal sends to controller 14.
Temperature in the rotating cylinder is generally low to reach-100 °F to-110 °F.This temperature is preferably measured (it produces and the corresponding signal of telecommunication of surveying of temperature as mentioned above) by infrared sensor, and infrared sensor is measured the temperature of rotating cylinder outer surface.This temperature and rotating cylinder temperature inside are closely related, and normally identical.
Having determined in another aspect of this invention, is very undesirable with directly refrigerant being applied to that mode on the rotating cylinder inner surface operates.Such practice waste refrigerant, refrigerant should advantageously be applied to food originally on one's body.Such practice also causes the cold excessively of rotating cylinder inner surface, this food that causes sending into rotating cylinder was bonded on the cold zone, cause speed of production to reduce or the damage of food or tear, this finally needs operator's shutoff operation, is bonded at food and cleaning inner surface on the inner surface with removal.
In order to obtain this result, some conditions have been pointed out.Condition is that location nozzle 8 makes it only be assigned to refrigerant on the freezing zone of the rotating cylinder inside that the food block that is cooled occupies.Cooled region preferably should be the zone of 1/4th circles in rotating cylinder inside on the rotating cylinder side on from the inner minimum point of rotating cylinder to direction of rotation.Promptly consider the rotating cylinder observed from the end once more, wherein distribute the pattern of refrigerant should be not more than quadrant zone between 6 positions and 3 positions, suppose that rotating cylinder is rotated counterclockwise.
In addition, the operation of this outfit of equipment should comprise some conditions, make when beginning to operate at first with the food material stream of newly coming in, controller 14 is programmed and makes and to make food block be admitted to rotating cylinder and begin to occupy the cooled region that will apply refrigerant afterwards up to the past time enough, and it is mobile just to begin refrigerant.The time span of this timing period can easily be calculated by experience or be determined, and is programmed in the controller 14.Certainly, detected and the high flow of signaling will start the refrigerant stream that enters pipeline 7 then corresponding to short delay by drawing-in device 11, vice versa.
In addition, in a kind of optional still embodiment preferred of the present invention, can also make when rotating cylinder rotates continuously by programmable controller, do not detect the food of sending into (being that mass flow is 0) when the drawing-in device long enough time, be when cooled region does not have food block in the rotating cylinder, then control device 14 will be closed refrigerant stream, in case aforesaid refrigerant undesirably is applied directly to the rotating cylinder inner surface and does not clash into food block.
The invention provides many advantages, comprise above-described which.Product is transported in the rotating cylinder, and in rotating cylinder, it is leniently stirred, simultaneously CO
2Snow or other refrigerant use spraying technique uniform distribution as herein described.Along with the CO that sprays into
2The continuous upset of snow blended product, cooling is rapidly and very uniform.Residence time in this unit is 2-6 minute, depends on product size and inlet temperature.CO
2Steam is controlled the Processing Room environment in the terminal discharge of rotating cylinder, and because not having snow to carry enters in the container of the product of accepting the discharge rotating cylinder, has also eliminated gross weight and refuse problem in freezing cold storage chamber.
The remarkable fluctuation of the present invention in can process for producing, and can be used as goods accumulation (accumulation point) in beginning aborning and the stopped process.
Have been found that also with other cooling system and compare that cryogen consumption reduces 5%-20%.
The accurate control that the present invention also provides cooling agent to inject helps to eliminate too much refrigerant and discharges, and it is cold excessively to help to eliminate product.And make product process minimum again owing to not reaching the cooling degree.The some signal of telecommunication inputs that utilized can also be used to measuring productivity ratio and refrigerant consumption.
The present invention also is suitable for freezing purposes easily.The location drawing-in device, so that product is sent into the import of refrigerating plant, described refrigerating plant can be a rotating cylinder as herein described, perhaps can be any miscellaneous equipment that can accept the product in the import, frozen product and make product discharge outlet.With with same way as mentioned above, drawing-in device is determined product to be sent into the speed of import and produce and the corresponding signal of this speed, and electronic-controlled installation receives those signals and receives with the product temperature of sending into import and discharge the corresponding input of product desired temperature of outlet, and with the corresponding input of hope residence time in rotating cylinder that is enough to frozen product.Then, in the freezer unit shell, supply refrigerant with the speed that is enough to the frozen food piece during by the freezer unit shell when food block.Freezing can directly carrying out promptly by directly refrigerant being applied on described, or carries out indirectly, and be promptly by providing refrigerant to heat exchange surface such as plate, pipe or equal device, feasible by heat exchange surface heat extraction from product.
Claims (8)
1. the cooling or the equipment of freezing a large amount of food blocks comprise:
(A) cooling device comprises: (1) limits a space and has described import (3) and the rotatable rotating cylinder (1) of described outlet (4); (2) device in described rotating cylinder (5), its inwardly outstanding baffle plate has certain angle with respect to rotating shaft, as the device of Continuous Drive, be used for when rotating cylinder (1) rotates, ordering about continuously the food block of described rotating cylinder by the mobile and discharge outlet (4) of the cooled region in the described space to outlet (4); (3) refrigerant distributor is used for making refrigerant send into described rotating cylinder (1) from the source (6) of described rotating cylinder (1) outside and described refrigerant being assigned to described cooled region; (4) be used to rotate the device of described rotating cylinder (1);
(B) drawing-in device (11), be used to receive described a large amount of food block and they are sent into the import (3) of rotatable rotating cylinder (1) continuously, this drawing-in device comprises that being used for detecting automatically food block sends into the mass flow of described import and produce device with the corresponding signal of telecommunication of mass flow of described automatic detection;
(C) electronic-controlled installation (14), be used for receiving and sending into the corresponding electronics input of described temperature of described import and import with being used to the corresponding electronics of desired temperature that the described described rotating cylinder of discharge exports from described drawing-in device reception and the corresponding described signal of described mass flow, be used to prevent refrigerant flowing to the described cooled region, described until scheduled volume is admitted to described cooled region, and be used for controlling refrigerant automatically and deliver to the speed of described cooled region, so that the speed of discharging the hope outlet temperature of rotating cylinder to their by the temperature that is enough to reduce described is distributed refrigerant by described refrigerant distributor according to described signal and described input.
2. according to the equipment of claim 1, wherein, described refrigerant distributor comprises to be sent into refrigerant the pipeline (7) of described rotating cylinder (1) and comprises the parts (8) that many thin channel are wherein arranged, and parts (8) pass completely through the end of described pipeline in described rotating cylinder and arrange.
3. according to the equipment of claim 1, wherein, described drawing-in device (11) contains the infrared temperature checkout gear, is used to detect temperature and the generation and the corresponding signal of telecommunication of described detected temperatures of described food block, and described signal is and the corresponding described electricity input of described temperature.
4. according to the equipment of claim 1, wherein, described cooling device comprises the infrared temperature checkout gear, be used to detect hull-skin temperature and the generation and the corresponding signal of telecommunication of described detected temperatures of described rotating cylinder, and described control device receives described signal and responds the refrigerant that described signal controls to described cooling device and flows.
5. the continuation method of a large amount of foods solid pieces of cooling comprises
(A) provide a kind of cooling device, it comprises that (1) limits a space and has described import (3) and the rotatable rotating cylinder (1) of described outlet (4); (2) device in described rotating cylinder (5), its inwardly outstanding baffle plate has certain angle with respect to rotating shaft, as the device of Continuous Drive, be used for when rotating cylinder (1) rotates, ordering about continuously the food block of described rotating cylinder by the mobile and discharge outlet (4) of the cooled region in the described space to outlet (4); (3) refrigerant distributor is used for making refrigerant send into described rotating cylinder (1) from the source (6) of described rotating cylinder (1) outside and described refrigerant being assigned to described cooled region; (4) be used to rotate the device of described rotating cylinder (1);
(B) provide a kind of drawing-in device (11), be used to receive described a large amount of food block and they are sent into the import of rotatable rotating cylinder (1) continuously, this drawing-in device comprises that being used for detecting automatically food block sends into the mass flow of described import and produce device with the corresponding signal of telecommunication of mass flow of described automatic detection;
(C) provide electronic-controlled installation (14), be used for receiving and sending into the corresponding electronics input of described temperature of described import and import with being used to the corresponding electronics of desired temperature that the described described rotating cylinder of discharge exports from described drawing-in device reception and the corresponding described signal of described mass flow, be used to prevent that described of scheduled volume is admitted to the flowing to the described cooled region of refrigerant before the described cooled region, and be used for controlling refrigerant automatically and deliver to the speed of described cooled region, so that the speed of discharging the outlet temperature that rotating cylinder wishes to their by the temperature that is enough to reduce described is distributed refrigerant by described refrigerant distributor according to described signal and described input;
(D) described is delivered in the drawing-in device.
6. according to the method for claim 5, wherein, described refrigerant is a carbon dioxide.
7. according to the method for claim 5, wherein, described drawing-in device comprises the infrared temperature checkout gear, is used to detect temperature and the generation and the corresponding signal of telecommunication of described detecting temperature of described food block, and described signal is and the corresponding described electricity input of described deblocking temperature.
8. according to the method for claim 5, wherein, described cooling device comprises the infrared temperature checkout gear, be used to detect the temperature of described rotating cylinder outer surface and produce and the corresponding signal of telecommunication of described detected temperatures, and described control device receives described signal and refrigerant that described signal response is controlled in the described cooling device flows.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/761,150 US6497106B2 (en) | 2001-01-17 | 2001-01-17 | Method and apparatus for chilling a food product |
| US09/761,150 | 2001-01-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1498332A CN1498332A (en) | 2004-05-19 |
| CN1250928C true CN1250928C (en) | 2006-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB028067401A Expired - Fee Related CN1250928C (en) | 2001-01-17 | 2002-01-11 | Food chilling method and apparatus |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US6497106B2 (en) |
| EP (1) | EP1352201A4 (en) |
| JP (1) | JP2004523228A (en) |
| KR (1) | KR100671652B1 (en) |
| CN (1) | CN1250928C (en) |
| BR (1) | BR0206527B1 (en) |
| CA (1) | CA2435214C (en) |
| MX (1) | MXPA03006388A (en) |
| WO (1) | WO2002057697A1 (en) |
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| US7374579B2 (en) * | 2004-08-18 | 2008-05-20 | Cargill, Incorporated | System for extruding, cutting in strands, freezing, and chopping a ground food product and method thereof |
| CA2608777A1 (en) * | 2005-05-19 | 2006-11-23 | Arra Yeghiayan | Compact apparatus for marinating and tenderizing meat |
| FR2887019B1 (en) | 2005-06-09 | 2007-07-20 | Air Liquide | PROCESS FOR CRYOGENIC COOLING OF POWDERS USING ANTICIPATED CONTROL STRATEGY |
| ATE434564T1 (en) * | 2005-11-15 | 2009-07-15 | Air Liquide | METHOD AND APPARATUS FOR COOLING FOOD ITEMS |
| DE602006007960D1 (en) * | 2006-05-18 | 2009-09-03 | Air Liquide | Use of a mixture of liquid nitrogen and carbon dioxide foam for freezing |
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| US7670042B2 (en) * | 2006-10-18 | 2010-03-02 | George Cheung | Marinating device |
| CN100453935C (en) * | 2007-06-27 | 2009-01-21 | 浙江海洋学院 | Revolving drum type quick-freeze device |
| EP2158814B1 (en) * | 2008-09-02 | 2013-08-21 | Air Products and Chemicals, Inc. | Method of Chilling Food Products in Food Mixer |
| WO2010105600A2 (en) * | 2009-03-14 | 2010-09-23 | Maja-Maschinenfabrik Hermann Schill Gmbh & Co. Kg | Apparatus for producing flake ice |
| WO2010132828A1 (en) * | 2009-05-14 | 2010-11-18 | The Cooper Union For The Advancement Of Science And Art | Compact rapid chilling device and compact method of rapidly chilling contained liquids |
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| KR200449642Y1 (en) * | 2009-10-30 | 2010-07-27 | 주식회사 킹텍 | Personal air conditioner |
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| JP2013540248A (en) * | 2010-03-17 | 2013-10-31 | エンバイロ−クール ユーケー リミテッド | Improvement in cooling or related to cooling |
| CN103189692A (en) * | 2010-09-14 | 2013-07-03 | 弥通雅贸易有限公司 | Freezing method and freezing device |
| CN104108585B (en) * | 2014-07-09 | 2016-08-17 | 浙江味之源食品有限公司 | A kind of fruit pay-off |
| FR3024540B1 (en) * | 2014-07-29 | 2018-02-16 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | FLOW METER USED FOR THE ASSAY OF ENERGY USED IN A PROCESS USING A CRYOGENIC FLUID |
| JP2016039787A (en) * | 2014-08-12 | 2016-03-24 | 株式会社ミツヤコーポレーション | Method for freezing food product |
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| LU100332B1 (en) * | 2017-07-06 | 2019-01-08 | Soremartec Sa | Process for producing a chewing-gum pellet |
| EP3700347A1 (en) * | 2017-10-26 | 2020-09-02 | GEA Food Solutions Bakel B.V. | Treatment of insects |
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-
2001
- 2001-01-17 US US09/761,150 patent/US6497106B2/en not_active Expired - Lifetime
-
2002
- 2002-01-11 KR KR1020037009466A patent/KR100671652B1/en not_active IP Right Cessation
- 2002-01-11 CA CA002435214A patent/CA2435214C/en not_active Expired - Fee Related
- 2002-01-11 CN CNB028067401A patent/CN1250928C/en not_active Expired - Fee Related
- 2002-01-11 MX MXPA03006388A patent/MXPA03006388A/en active IP Right Grant
- 2002-01-11 WO PCT/US2002/000616 patent/WO2002057697A1/en active Application Filing
- 2002-01-11 JP JP2002557733A patent/JP2004523228A/en active Pending
- 2002-01-11 EP EP02703095A patent/EP1352201A4/en not_active Withdrawn
- 2002-01-11 BR BRPI0206527-4A patent/BR0206527B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2435214A1 (en) | 2002-07-25 |
| BR0206527A (en) | 2004-02-17 |
| US20020162349A1 (en) | 2002-11-07 |
| CA2435214C (en) | 2007-03-27 |
| EP1352201A1 (en) | 2003-10-15 |
| KR20030070112A (en) | 2003-08-27 |
| EP1352201A4 (en) | 2005-10-19 |
| KR100671652B1 (en) | 2007-01-18 |
| US6497106B2 (en) | 2002-12-24 |
| CN1498332A (en) | 2004-05-19 |
| BR0206527B1 (en) | 2011-06-14 |
| WO2002057697A1 (en) | 2002-07-25 |
| MXPA03006388A (en) | 2003-10-15 |
| JP2004523228A (en) | 2004-08-05 |
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